#!/usr/bin/env python3
# -*- coding: utf-8 -*-
""" a test module """
__author__ = 'Michael Liao'
test = 0
__test1 = 1
test2__ = 2
__test3__ = 3
import sys

def test():

    args = sys.argv
    if len(args)==1:
        print("Hello world!")
    else:
        print("Too many arguments!")

print(sys.path)
if __name__ == '__main__':
    test()